From ac5105052dc8be5cef34d79e1f4186d39b2f3ca3 Mon Sep 17 00:00:00 2001 From: Matthias Maennich Date: Thu, 28 Feb 2019 11:36:52 +0000 Subject: [PATCH] sctp: chunk.c: correct format string for size_t in printk According to Documentation/core-api/printk-formats.rst, size_t should be printed with %zu, rather than %Zu. In addition, using %Zu triggers a warning on clang (-Wformat-extra-args): net/sctp/chunk.c:196:25: warning: data argument not used by format string [-Wformat-extra-args] __func__, asoc, max_data); ~~~~~~~~~~~~~~~~^~~~~~~~~ ./include/linux/printk.h:440:49: note: expanded from macro 'pr_warn_ratelimited' printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ ./include/linux/printk.h:424:17: note: expanded from macro 'printk_ratelimited' printk(fmt, ##__VA_ARGS__); \ ~~~ ^ Fixes: 5b5e0928f742 ("lib/vsprintf.c: remove %Z support") Link: https://github.com/ClangBuiltLinux/linux/issues/378 Signed-off-by: Matthias Maennich Acked-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller --- net/sctp/chunk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c index 64bef31..5cb7c1f 100644 --- a/net/sctp/chunk.c +++ b/net/sctp/chunk.c @@ -192,7 +192,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc, if (unlikely(!max_data)) { max_data = sctp_min_frag_point(sctp_sk(asoc->base.sk), sctp_datachk_len(&asoc->stream)); - pr_warn_ratelimited("%s: asoc:%p frag_point is zero, forcing max_data to default minimum (%Zu)", + pr_warn_ratelimited("%s: asoc:%p frag_point is zero, forcing max_data to default minimum (%zu)", __func__, asoc, max_data); } -- 2.7.4